A、absorption method
B、adsorption method
C、condensation method
D、membrane separation method
A、absorption method
B、adsorption method
C、condensation method
D、membrane separation method
A、I’ m sorry that there is no such a professional magazine on board at present.
B、I’m afraid China Daily is the only English newspaper we have on board at present.
C、There is also a selection of pop music, classical music and folk music.
D、Headset may be acquired from our flight attendant without charge on board.
A、arrogance
B、gentleness
C、individuality and ability
D、showing off
A、cook by aluminum pot
B、take more exercise
C、eat more meat
D、stay up late
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